Official SUNDAY January Math IIC test

<p>Anyone take the sunday IIC? Is the time (noon) that we can discuss it, central, pacific, eastern, or what? It looks like CCs time is GMT -7. I am at -8, 10:35</p>

<p>Well its 1:50 according to CC so I am good to go.</p>

<p>The one with a table of numbers: 67
Last one: II and III
What is the set of points in space that is 2 units away from line L. Crap I changed my answer, i guessed either cylinder or sphere, I think sphere.
The R+s one, r=6? If R and S are equal, and r=6 +i(s-2) then r is 6 right? becuase the only way for R to be real is to remove the i, by making S=2.
Is it just me, or was all the trignometry amazingly easy compared to other stuff.
Oh what was this one like there are three planes, lets say J,K,L,. Their equations, respectively:
x+y+z=2
x+y+z=3
x+y+z=1.5
What can you say about em? I guessed none were parallel. I didnt see this kind of problem mentioned in any of my practice.
Another one with like 40e^(-.1t)cos(2t), I got 6.44.
Matrix, I got E. I had to put in every type of matrix to get this. Only D and E worked, and E was the right dimensions.</p>

<p>The first one was 20 coins of each.</p>

<p>also there was a standard deviation question. It was, which of the following either (cant remember) changes std. dev. or increases it.
I. Increasing all numbers in a set.
II. Decreasing "
III. Multiplying "
I think its III only. I tested it on my TI84 calc.</p>